ST/SR-AiphoneLEF-x, card is designed specifically to work seamlessly with the Aiphone LEF and LEM series intercom systems on one multi-mode or single-mode optical fiber. The card features one bi-directional channel of intercom-compatible fiber optic audio and two bi-directional contact closures for push-to-call and gate or access control. DigiSlim product family is available as rack mount cards and modules that can be installed in any of Meridian’s desk chassis or in 19-inch racking frames. This system can be configured in either star (module to rack) or trunking (rack to rack) configurations. These systems can be transformed in to a standalone module by utilizing an SR-500 (standard configuration) or an SR-1001 subrack frames.
Aiphone LEF and LEM system compatible
Bi-directional contact closures and half-duplex audio
Wide optical dynamic range eliminates need for optical attenuators
Laser based systems for multi-mode and single-mode
Local LED status indicators to monitor critical system diagnostics for performance parameters
ST, FC optical connector
Hot swappable cards
Laser back, biased photo detector circuitry for stable optical output over full temperature range
Convenient screw terminals for audio and contacts
Applicable for access control systems
Fiber Optic Connector Type - Other
Fiber Optic Signals Supported - Audio
Spec Sheet available - Yes
Contact Closure Rate:
10 Hz (per channel)
Contact Closure Rating:
0.3A, 30Vac/dc
Contact Closure Bounce Time:
5 ms
Audio I/O Impedance:
4 to 8 ohms (unbalanced)
Audio Frequency Response:
10Hz to 15kHz
Audio SNR:
>65 dB (weighted, at 1kHz)
Audio Total Harmonic Distortion:
<0.01 % (at 1kHz)
